Issued Patents All Time
Showing 51–75 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5746812 | Stable aqueous polyolefin wax dispersions | Michael Muller, Paul Klingelhofer | 1998-05-05 |
| 5719319 | Process for the preparation of a creatine or creatine monohydrate | Helmut Krommer | 1998-02-17 |
| 5708182 | Method for preparation of 2-imino 4-oxo-5-phenyloxazolidine | Martina Lobensommer | 1998-01-13 |
| 5705666 | Process for the preparation of crystalline O-isopropylisourea hydrochloride | — | 1998-01-06 |
| 5463055 | Process for the production of 2-ethoxy-4,6-dihydroxypyrimidine or its alkali salts | Helmut Hintermaier, Ursula Maier | 1995-10-31 |
| 5367305 | Method and apparatus for controlling an active antenna | Michael Lothar Völker, Rudolf Zahn | 1994-11-22 |
| 5208351 | Process for the preparation of N-cyanoimidocarbonates | Franz Thalhammer | 1993-05-04 |
| 5126269 | Spin filter perfusion bioreactor (SFPB) cell culture apparatus | Richard Fike, Patrick C. Pomeroy | 1992-06-30 |
| 5064908 | Oxidized polyethylene and use as lubricant for polyvinylchloride | Ludwig Schuster, Albert Hettche, Werner Liedy, Leo Ehemann | 1991-11-12 |
| 5034096 | Process for bleaching and delignifying cellulose-containing products | Benedikt Hammer, Horst Michaud | 1991-07-23 |
| 4956503 | Process for the preparation of N-cyanoethanimidic acid esters | Helmut Krommer, Karl-Heinz Neuhauser | 1990-09-11 |
| 4889897 | Oxidation of polyethylene | Ludwig Schuster, Albert Hettche, Werner Liedy, Leo Ehemann | 1989-12-26 |
| 4750933 | Floor polish emulsions based on ethylene copolymer | Franz Brandstetter, Walter Ziegler, Wolfram Dietsche, Albert Hettche, Otto Kuehneweg | 1988-06-14 |
| 4714602 | Process for the preparation of solid sodium hydrogen cyanamide | Helmut Krommer, Karl-Heinz Neuhauser | 1987-12-22 |
| 4693909 | Aqueous wax dispersions as preservatives for metal surfaces and surfaces of coatings, their use and a process for preserving metal surfaces and surfaces of coatings | Walter Ziegler, Wolfram Dietsche, Richard W. Mueller, Albert Hettche, Klaus Glaser +1 more | 1987-09-15 |
| 4680327 | Stabilizers | Albert Hettche, Hubert Trauth, Peter Lechtken, Michael Horner | 1987-07-14 |
| 4621109 | Polypropylene stabilizing anti-oxidant 2,3-dihydrobenz-4-oxa-1-thiin derivatives, compositions and method of use therefor | Peter Lechtken, Hubert Trauth, Albert Hettche | 1986-11-04 |
| 4614604 | Lubricants for shaping polyvinyl chloride, which contain esterified oligomeric polyhydric alcohols | Herbert Helfert, Wolf-Dieter Balzer, Guenter Hatzmann, Wolfram Dietsche, Albert Hettche | 1986-09-30 |
| 4604471 | Furan-3-carbohydroxamates and their use | Peter Neumann, Michael Thomas, Hubert Trauth | 1986-08-05 |
| 4603205 | Furan-3-carboxylic acid derivatives | Peter Neumann, Reinhard Helwig, Hubert Trauth | 1986-07-29 |
| 4587337 | Process for the preparation of 2-amino-s-triazines | Helmut Krommer | 1986-05-06 |
| 4477421 | Process for the stabilization of aqueous cyanamide solutions | — | 1984-10-16 |
| 4459388 | Preparation of emulsifiable polyethylene by oxidizing polyethylene in a fluidized bed reactor | Albert Hettche, Peter Miederer, Lutz Goethlich, Juergen Ciprian | 1984-07-10 |
| 4438008 | Lubricant, containing esterified ethylene/acrylic acid or ethylene/maleic acid copolymers as the active ingredient, for moulding chlorine-containing thermoplastics | Dieter Oeder, Walter Ziegler, Manfred Daeuble, Wolfram Dietsche, Albert Hettche | 1984-03-20 |
| 4417035 | Emulsifiable hard waxes consisting of copolymers of ethylene with unsaturated carboxylic acids | Dieter Oeder, Wolfram Dietsche, Walter Ziegler, Peter Kueppers, Albert Hettche | 1983-11-22 |